/* Set Prep: the look, ported from the preach-media Media app
   (media-app.html; its reasoning is in preach-media docs/DESIGN-SYSTEM.md)
   by way of nashville-number-coach's lib/theme.css. The token blocks are
   that app's values verbatim: if they change there, copy them here.

   - Warm neutrals in both themes; three text levels (ink, ink-2, ink-3).
   - Circular for everything, Quarto for display sizes only (fonts/).
   - The gradient means "Awaken": the mark, the primary button, the rail.
     Selected things are an inverted pill (ink background), never the
     gradient.
   - Dark is html[data-theme=dark], set before first paint by the boot
     script in index.html's <head> (light, dark, or the system's).
   - Over time uses --err; nothing else here is right or wrong.
   App-specific styles live in app/app.css. */
:root{
  --pink:#E80E8A; --orange:#EE4137; --yellow:#F59220;
  --grad:linear-gradient(45deg,#E80E8A 0%,#EE4137 50%,#F59220 100%);
  --grad-h:linear-gradient(90deg,#E80E8A 0%,#EE4137 50%,#F59220 100%);
  --orange-text:#C4342A;
  --pink-text:#C50B75;
  --ink:#1F1B17; --ink-2:#574E45; --ink-3:#786D60;
  --bg:#F7F5F1; --card:#fff; --line:#E4DFD7; --line-soft:#F0EBE3;
  --line-strong:#9E9384;
  --surface:#ffffff; --surface-2:#FBF9F5; --surface-3:#FDFCF9;
  --ok:#0E7050; --ok-bg:#E6F4EE; --pend:#8F4A00; --pend-bg:#FBEFDF;
  --err:#C5221A; --err-bg:#FCEBE9;
  --font:'Circular','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-display:'Quarto',Georgia,serif;
  --fs-micro:10px; --fs-xs:11px; --fs-sm:12px; --fs-md:13px;
  --fs-base:14px;  --fs-lg:15px; --fs-xl:20px; --fs-2xl:26px; --fs-3xl:36px;
  --r-xs:4px; --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:20px; --r-full:999px;
  --sh-sm:0 1px 2px rgba(0,0,0,.05);
  --sh-md:0 8px 24px -14px rgba(0,0,0,.28);
  --sh-lg:0 22px 50px -20px rgba(0,0,0,.4);
  --ease:cubic-bezier(.2,.8,.3,1);
  --ease-spring:cubic-bezier(.25,1.15,.35,1);
  --ease-panel:cubic-bezier(.32,.72,0,1);
  --dur-fast:120ms; --dur:200ms; --dur-slow:320ms;
  --focus:0 0 0 2px var(--surface),0 0 0 4px rgba(238,65,55,.55);
  color-scheme:light;
}
html[data-theme=dark]{
  --ink:#F4F2EE; --ink-2:#BCB6AC; --ink-3:#948B7C;
  --bg:#16130F; --card:#201C17; --line:#37312A; --line-soft:#272220;
  --line-strong:#7A7366;
  --surface:#201C17; --surface-2:#2A2520; --surface-3:#252017;
  --ok:#4cd699; --ok-bg:rgba(76,214,153,.13); --pend:#f0a95c; --pend-bg:rgba(245,146,32,.15);
  --err:#FF9D95; --err-bg:rgba(217,48,37,.14);
  --sh-sm:0 1px 2px rgba(0,0,0,.45);
  --sh-md:0 10px 26px -10px rgba(0,0,0,.75);
  --sh-lg:0 26px 58px -18px rgba(0,0,0,.85);
  --orange-text:#FF9384; --pink-text:#FF8AC6;
  color-scheme:dark;
}

/* ---------------------------------------------------------------- base */
*{box-sizing:border-box;margin:0;padding:0}
html,body{overscroll-behavior-y:none}
body{font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;
  line-height:1.5;font-size:var(--fs-base);transition:background var(--dur);-webkit-tap-highlight-color:transparent;overflow-x:hidden}
button,input,select,textarea{font-family:var(--font);color:inherit}
button{touch-action:manipulation;cursor:pointer}
img,svg{display:block}
a{color:inherit}
:focus{outline:none}
:focus-visible{box-shadow:var(--focus);border-radius:var(--r-sm)}
::selection{background:rgba(238,65,55,.2)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
[hidden]{display:none !important}
@media all and (display-mode:standalone){
  body{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
}

/* ---------------------------------------------------------------- type */
.label{font-size:var(--fs-xs);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.display{font-family:var(--font-display);font-weight:700;font-size:var(--fs-3xl);letter-spacing:-.015em;line-height:1.08}
.display em,.h2 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.h2{font-family:var(--font-display);font-weight:700;font-size:var(--fs-2xl);letter-spacing:-.01em;line-height:1.15}
.h3{font-size:var(--fs-lg);font-weight:800;line-height:1.3}
.sub{color:var(--ink-2);font-size:var(--fs-md)}
.muted{color:var(--ink-3)}
.small{font-size:var(--fs-md)}
.tiny{font-size:var(--fs-sm)}
.prose p{font-size:var(--fs-lg);line-height:1.65;color:var(--ink-2);max-width:66ch;margin-top:12px}
.prose p:first-child{margin-top:0}
.prose b{color:var(--ink)}

/* ---------------------------------------------------------------- the app shell
   Desktop: a sidebar with an ink glider behind the current page. Phones
   (860px and under): a header and a bottom tab bar. */
.shell{display:flex;min-height:100vh}
aside.side{width:232px;flex:none;background:var(--surface);border-right:1px solid var(--line);padding:22px 14px;
  display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}
.side-brand{display:flex;align-items:center;gap:10px;padding:0 10px 18px;text-decoration:none}
.side-mark{width:34px;height:34px;flex:none;object-fit:contain}
.side-title{font-size:var(--fs-sm);font-weight:800;letter-spacing:.1em;line-height:1.3;text-transform:uppercase}
.side-title span{display:block;color:var(--ink-3);font-weight:600;letter-spacing:.04em;text-transform:none}
.side-label{font-size:var(--fs-xs);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);padding:14px 10px 6px}
.side-nav{position:relative;display:flex;flex-direction:column;gap:4px}
.nav-glider{position:absolute;left:0;right:0;top:0;height:0;background:var(--ink);border-radius:var(--r-md);
  transition:top var(--dur-slow) var(--ease-spring),height var(--dur-slow) var(--ease-spring),opacity var(--dur);z-index:0;pointer-events:none;opacity:0}
.nav-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:none;background:none;font-size:var(--fs-base);
  font-weight:600;color:var(--ink-2);padding:10px 12px;border-radius:var(--r-md);transition:all var(--dur-fast);position:relative;z-index:1;text-decoration:none}
.nav-item:hover{background:var(--line-soft);color:var(--ink)}
.nav-item[aria-current=page]{background:none;color:var(--surface)}
.nav-item svg{width:18px;height:18px;flex:none}
.nav-item .count{margin-left:auto;font-size:var(--fs-sm);font-weight:700;background:var(--line-soft);color:var(--ink-2);border-radius:var(--r-full);padding:2px 9px;min-width:26px;text-align:center}
.nav-item[aria-current=page] .count{background:rgba(127,127,127,.3);color:var(--surface)}
.nav-item .count:empty{display:none}
.side-foot{margin-top:auto;padding-top:10px;border-top:1px solid var(--line-soft)}
main.main{flex:1;min-width:0;padding:28px 32px 80px}
.page{max-width:1080px;margin:0 auto}
.topbar{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.topbar .sub{margin-top:4px;max-width:70ch}
.m-head,.tabbar{display:none}
@media(max-width:860px){
  .shell{flex-direction:column}
  aside.side{display:none}
  main.main{padding:16px 14px calc(96px + env(safe-area-inset-bottom))}
  .m-head{display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:46;background:var(--surface);border-bottom:1px solid var(--line);
    padding:calc(10px + env(safe-area-inset-top)) 14px 10px}
  .m-head img{width:26px;height:26px;object-fit:contain}
  .m-head .t{font-weight:800;font-size:var(--fs-base)}
  .m-head .icon-btn{margin-left:auto}
  .tabbar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--surface);
    border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom));box-shadow:var(--sh-md)}
  .tabbar a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 2px;color:var(--ink-3);font-size:var(--fs-micro);
    font-weight:700;letter-spacing:.02em;text-decoration:none;border-radius:var(--r-md);transition:background var(--dur-fast)}
  .tabbar a svg{width:22px;height:22px}
  .tabbar a[aria-current=page]{color:var(--orange-text);background:var(--line-soft)}
  .topbar{margin-bottom:16px}
  .display{font-size:30px}
}

/* ---------------------------------------------------------------- buttons */
.btn-primary,.btn,.btn-quiet,.btn-danger{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);
  border-radius:var(--r-full);white-space:nowrap;text-decoration:none;transition:all var(--dur);min-height:44px}
.btn-primary{font-size:var(--fs-lg);font-weight:800;color:#fff;border:none;background:var(--grad);padding:12px 30px;box-shadow:var(--sh-sm)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn{font-size:var(--fs-base);font-weight:700;color:var(--ink);background:var(--surface);border:1.5px solid var(--line-strong);padding:10px 20px}
.btn:hover{border-color:var(--ink-3)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-quiet{font-size:var(--fs-base);font-weight:700;color:var(--ink-2);background:none;border:none;padding:10px 12px}
.btn-quiet:hover{color:var(--ink);background:var(--line-soft)}
.btn-danger{font-size:var(--fs-base);font-weight:700;color:var(--err);background:var(--surface);border:1.5px solid var(--line);padding:10px 20px}
.btn-danger:hover{border-color:var(--err)}
.btn-sm{min-height:34px;padding:6px 14px;font-size:var(--fs-md)}
.btn-primary svg,.btn svg,.btn-quiet svg,.btn-danger svg{width:16px;height:16px;flex:none}
.icon-btn{border:1.5px solid var(--line-strong);background:var(--surface);border-radius:var(--r-md);width:38px;height:38px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-2);transition:all var(--dur-fast)}
.icon-btn:hover{border-color:var(--ink-3);color:var(--ink)}
.icon-btn:disabled{opacity:.4;cursor:default}
.icon-btn svg{width:17px;height:17px}

/* ---------------------------------------------------------------- controls */
.seg{display:inline-flex;background:var(--surface);border:1.5px solid var(--line);border-radius:var(--r-full);padding:3px;gap:2px;flex-wrap:wrap}
.seg button{border:none;background:none;font-size:var(--fs-sm);font-weight:700;color:var(--ink-2);padding:7px 14px;border-radius:var(--r-full);
  transition:all var(--dur-fast);white-space:nowrap;min-height:32px}
.seg button:hover{color:var(--ink)}
.seg button[aria-pressed=true]{background:var(--ink);color:var(--surface)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink-2);
  font-size:var(--fs-sm);font-weight:700;padding:6px 12px;border-radius:var(--r-full);transition:all var(--dur-fast);white-space:nowrap;min-height:32px}
.chip:hover{border-color:var(--ink-3);color:var(--ink)}
.chip[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:var(--surface)}
.chip svg{width:13px;height:13px}
.chip.dash{border-style:dashed}
.field{display:grid;gap:6px;min-width:0;align-content:start}
.field>span{font-size:var(--fs-xs);font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.input{width:100%;font-size:var(--fs-lg);font-weight:600;padding:11px 14px;border:1.5px solid var(--line-strong);border-radius:var(--r-md);
  background:var(--surface-2);color:var(--ink);transition:border-color var(--dur-fast);min-height:44px}
.input::placeholder{color:var(--ink-3);font-weight:400}
.input:hover{border-color:var(--ink-3)}
.input:focus{border-color:var(--orange);box-shadow:var(--focus)}
textarea.input{min-height:84px;resize:vertical;line-height:1.45;font-weight:400}
select.input{-webkit-appearance:none;appearance:none;padding-right:36px;cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='%239b9aa0' stroke-width='2.6' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center}
.input.mono{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-weight:500;letter-spacing:.01em}
.search{position:relative;flex:1;min-width:0}
.search .input{border-radius:var(--r-full);padding-left:40px;background:var(--surface)}
.search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--ink-3);pointer-events:none}
.switch{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:var(--fs-base);cursor:pointer}
.switch input{appearance:none;-webkit-appearance:none;width:42px;height:24px;border-radius:var(--r-full);background:var(--line-strong);position:relative;transition:background var(--dur);cursor:pointer;flex:none}
.switch input::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:var(--sh-sm);transition:transform var(--dur) var(--ease)}
.switch input:checked{background:var(--ok)}
.switch input:checked::after{transform:translateX(18px)}

/* ---------------------------------------------------------------- surfaces */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-sm)}
.panel-pad{padding:22px}
@media(max-width:860px){.panel-pad{padding:16px}}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}
/* The one decorated surface: a rail, a soft brand wash and the mark,
   faint and cropped, as on the Media app's gate. */
.hero{position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-md)}
.hero::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad);z-index:2}
.hero::after{content:"";position:absolute;right:-60px;top:50%;width:420px;height:420px;transform:translateY(-50%);background:var(--ink);
  -webkit-mask:url("../icons/w.png") no-repeat center/contain;mask:url("../icons/w.png") no-repeat center/contain;opacity:.045;pointer-events:none}
html[data-theme=dark] .hero::after{opacity:.07}
.glow{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.glow i{position:absolute;border-radius:var(--r-full);filter:blur(80px);opacity:.12}
.glow i:nth-child(1){width:300px;height:300px;right:40px;top:-120px;background:var(--pink)}
.glow i:nth-child(2){width:340px;height:340px;right:220px;bottom:-200px;background:var(--orange)}
.glow i:nth-child(3){width:240px;height:240px;left:-80px;top:30%;background:var(--yellow);opacity:.08}
html[data-theme=dark] .glow i{opacity:.2}
.hero>*:not(.glow){position:relative;z-index:1}

.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-full);font-size:var(--fs-sm);font-weight:700;
  background:var(--line-soft);color:var(--ink-2);white-space:nowrap}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.pend{background:var(--pend-bg);color:var(--pend)}
.key-pill{display:inline-flex;align-items:baseline;gap:6px;padding:5px 12px;border-radius:var(--r-full);background:var(--line-soft);
  font-size:var(--fs-xs);font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.key-pill b{font-family:var(--font-display);font-size:var(--fs-xl);font-weight:700;letter-spacing:0;text-transform:none;color:var(--ink);line-height:1}
/* Level: one to three bars, filled with the gradient. */
.bars{display:inline-flex;align-items:flex-end;gap:2px;height:13px}
.bars i{width:4px;border-radius:1px;background:var(--line)}
.bars i:nth-child(1){height:5px}.bars i:nth-child(2){height:9px}.bars i:nth-child(3){height:13px}
.bars[data-n="1"] i:nth-child(-n+1),.bars[data-n="2"] i:nth-child(-n+2),.bars[data-n="3"] i:nth-child(-n+3){background:var(--grad)}

/* ---------------------------------------------------------------- tiles
   A chord as a card: the number (or chord) large in Quarto, the other
   below it in Circular. Extensions are raised; a slash chord's bass sits
   after a light slash. */
.tiles{display:flex;flex-wrap:wrap;gap:8px}
.tile{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:68px;min-height:84px;
  padding:10px 12px 9px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);
  transition:transform var(--dur) var(--ease),border-color var(--dur-fast),background var(--dur-fast),box-shadow var(--dur)}
.tile .big{font-family:var(--font-display);font-weight:700;font-size:36px;line-height:1;letter-spacing:-.01em;white-space:nowrap}
.tile .sub{margin-top:7px;font-size:var(--fs-md);font-weight:700;color:var(--ink-3);white-space:nowrap}
.tile.small{min-width:50px;min-height:0;padding:7px 9px 6px;border-radius:var(--r-sm)}
.tile.small .big{font-size:24px}
.tile.small .sub{margin-top:4px;font-size:var(--fs-sm)}
.tile.mini{min-width:0;min-height:0;padding:3px 8px;border-radius:var(--r-sm);background:var(--surface-2)}
.tile.mini .big{font-family:var(--font);font-size:var(--fs-md);font-weight:700;line-height:1.4}
.tile.playing{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink),var(--sh-md);transform:translateY(-2px)}
.tile.ok{background:var(--ok-bg);border-color:transparent}
.tile.bad{background:var(--err-bg);border-color:transparent}
.tile.close{background:var(--pend-bg);border-color:transparent}
.tile .was{margin-top:5px;font-size:var(--fs-xs);font-weight:800;color:var(--err);white-space:nowrap}
.tile.close .was{color:var(--pend)}
.tile.hit{background:var(--ink);border-color:var(--ink);color:var(--surface)}
.numtxt sup,.chordtxt sup{font-size:.5em;vertical-align:super;line-height:0;margin-left:1px;font-family:var(--font);font-weight:700}
.numtxt .q,.chordtxt .q{font-size:.62em;margin-left:1px}
.numtxt .sl,.chordtxt .sl{opacity:.4;margin:0 1px}
.numtxt .bs,.chordtxt .bs{font-size:.78em}
.tile.mini .q,.tile .sub .q,.tile.mini .bs,.tile .sub .bs{font-size:1em;margin:0}
.slot{min-width:68px;min-height:72px;padding:8px 10px;border-radius:var(--r-md);border:1.5px dashed var(--line-strong);background:transparent;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;font-size:30px;color:var(--ink);transition:all var(--dur-fast)}
.slot.cur{border-style:solid;border-color:var(--orange);box-shadow:var(--focus)}
.slot.filled{border-style:solid;border-color:var(--line);background:var(--surface)}
.play-btn{flex:none;width:42px;height:42px;border-radius:var(--r-full);border:none;display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--surface);transition:transform var(--dur-fast) var(--ease)}
.play-btn:active{transform:scale(.94)}
.play-btn svg{width:15px;height:15px}
.play-btn[aria-pressed=true]{background:var(--grad);color:#fff}

/* ---------------------------------------------------------------- feedback */
.toasts{position:fixed;left:50%;bottom:28px;z-index:80;transform:translateX(-50%);display:flex;flex-direction:column;gap:8px;pointer-events:none;width:max-content;max-width:calc(100vw - 28px)}
.toast{background:var(--ink);color:var(--surface);font-size:var(--fs-base);font-weight:700;padding:12px 18px;border-radius:var(--r-md);box-shadow:var(--sh-lg);
  animation:toastIn var(--dur-slow) var(--ease-spring)}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}}
@media(max-width:860px){.toasts{bottom:calc(84px + env(safe-area-inset-bottom))}}
.callout{display:flex;gap:12px;align-items:flex-start;padding:13px 15px;border-radius:var(--r-md);background:var(--surface-2);border:1px solid var(--line);
  font-size:var(--fs-base);color:var(--ink-2);line-height:1.5}
.callout svg{width:17px;height:17px;flex:none;margin-top:2px;color:var(--orange-text)}
.empty{text-align:center;padding:36px 20px;color:var(--ink-2)}
.empty .es-mark{width:52px;height:52px;object-fit:contain;margin:0 auto 14px;opacity:.92}
.empty .h3{color:var(--ink);margin-bottom:4px}
.spinner{width:22px;height:22px;border-radius:50%;border:2.5px solid var(--line);border-top-color:var(--orange);animation:spin .8s linear infinite;margin:0 auto}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes rise{from{opacity:0;transform:translateY(8px)}}
.rise{animation:rise var(--dur-slow) var(--ease) backwards}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}}

/* ---------------------------------------------------------------- modal */
dialog.modal{width:min(440px,calc(100vw - 28px));border:1px solid var(--line);border-radius:var(--r-xl);padding:0;background:var(--surface);color:var(--ink);box-shadow:var(--sh-lg);margin:auto}
dialog.modal::backdrop{background:rgba(26,22,18,.45)}
html[data-theme=dark] dialog.modal::backdrop{background:rgba(0,0,0,.62)}
.modal-body{padding:22px;display:grid;gap:18px}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.set-row{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.set-row .l{font-weight:700}
.set-row .s{font-size:var(--fs-md);color:var(--ink-3)}

/* ---------------------------------------------------------------- the gate
   As on the Media app: the mark huge and faint, cropped by the right edge,
   a warm wash behind it, and a 3px gradient rail across the top. */
#gate{position:fixed;inset:0;background:var(--bg);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;overflow:hidden}
#gate::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad);z-index:2}
#gate::after{content:"";position:absolute;right:-13vmin;top:50%;width:74vmin;height:74vmin;transform:translateY(-50%);background:var(--ink);
  -webkit-mask:url("../icons/w.png") no-repeat center/contain;mask:url("../icons/w.png") no-repeat center/contain;opacity:.05;pointer-events:none}
html[data-theme=dark] #gate::after{opacity:.075}
.gate-glow{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.gate-glow i{position:absolute;border-radius:var(--r-full);filter:blur(90px);opacity:.14}
.gate-glow i:nth-child(1){width:44vmin;height:44vmin;right:4vmin;top:-8vmin;background:var(--pink)}
.gate-glow i:nth-child(2){width:50vmin;height:50vmin;right:18vmin;bottom:-14vmin;background:var(--orange)}
.gate-glow i:nth-child(3){width:34vmin;height:34vmin;left:-6vmin;top:34%;background:var(--yellow);opacity:.09}
html[data-theme=dark] .gate-glow i{opacity:.2}
@media(prefers-reduced-motion:no-preference){
  .gate-glow i{animation:gateDrift 18s ease-in-out infinite alternate}
  .gate-glow i:nth-child(2){animation-duration:23s;animation-delay:-6s}
  .gate-glow i:nth-child(3){animation-duration:27s;animation-delay:-11s}
}
@keyframes gateDrift{to{transform:translate3d(2.5vmin,-3vmin,0) scale(1.08)}}
.gate-card{position:relative;z-index:1;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);padding:42px 40px 36px;
  max-width:400px;width:100%;text-align:center;box-shadow:var(--sh-md),var(--sh-lg);animation:gateIn .55s var(--ease-spring) backwards}
@keyframes gateIn{from{opacity:0;transform:translateY(14px) scale(.985)}}
.gate-card::before{content:"";position:absolute;left:34%;right:34%;top:0;height:2px;background:var(--grad);border-radius:var(--r-full)}
.gate-mark{width:64px;height:64px;margin:0 auto 18px;object-fit:contain;animation:gateMark .7s var(--ease-spring) backwards;animation-delay:.1s}
@keyframes gateMark{from{opacity:0;transform:scale(.8)}}
.gate-card h1{font-family:var(--font-display);font-size:var(--fs-3xl);font-weight:700;letter-spacing:-.015em;line-height:1.08}
.gate-card h1 span{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.gate-card p{color:var(--ink-2);font-size:var(--fs-base);margin:6px 0 20px}
.gate-card input{width:100%;font-size:var(--fs-lg);text-align:center;letter-spacing:.2em;padding:12px;border:1.5px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface-2)}
.gate-card input:focus{border-color:var(--orange);box-shadow:var(--focus)}
.gate-err{color:var(--err);font-size:var(--fs-md);font-weight:600;margin-top:10px;min-height:1.5em}
.gate-card .btn-primary{margin-top:16px}

.demo-banner{position:relative;z-index:101;text-align:center;padding:6px 14px;font-size:var(--fs-sm);font-weight:800;letter-spacing:.02em;color:#fff;background:var(--grad-h)}